基于信道加密的量子安全直接通信

J4 ›› 2015, Vol. 32 ›› Issue (6): 686-690.

基于信道加密的量子安全直接通信

钱鹏,李兴华

福建师范大学物理与能源学院，福建福州 350117

收稿日期:2014-11-21 修回日期:2014-12-28 出版日期:2015-11-28 发布日期:2015-11-05
通讯作者: 李兴华（1959- ）福建人，副教授，硕士，研究方向为量子理论. E-mail:lixh@fjnu.edu.cn
作者简介:钱鹏（1988- ）安徽人，研究生，研究方向为量子信息. Email:qianpeng@live.cn
基金资助:
国家自然科学基金资助项目(61308012、61275215)；福建省自然科学基金资助项目(2013J01008、JB13021)；福建省教育厅资助项目(JB12014)

Quantum Secure Direct Communication via Quantum Encryption

Qian Peng, Li Xinghua

College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China

Received:2014-11-21 Revised:2014-12-28 Published:2015-11-28 Online:2015-11-05

摘要/Abstract

摘要：

基于量子信道加密原理，结合Ping-Pong协议控制模式和信息模式的概念，提出了一个量子安全直接通信协议。在此协议中，发送者和接收者用n对Bell态作为量子信道，发送者用controlled-Not操作将单粒子纠缠入量子信道，接收者用controlled-Not操作将单粒子与量子信道解纠缠。通信双方依次执行控制模式和信息模式，控制模式检测窃听，信息模式发送秘密信息。控制模式和信息模式均不会对已建立的量子信道造成破坏，因此建立量子信道的过程仅需一次，此后通信双方可以反复进行控制模式和信息模式进行窃听检测和秘密信息传输。

关键词: 量子光学, 量子安全, 直接通信, 信道加密, 窃听检测

Abstract:

Based on quantum encryption and Ping-Pong protocol, a quantum secure direct communication protocol was proposed. In this protocol, sender and receiver used n pairs Bell states as carrier, sender entangled single particles in carriers by performing controlled-Not operations and receiver disentangled single particles in carriers also by performing controlled-Not operations. Communication partners performed control mode and message mode in turn, control mode detecting eavesdropping and massage mode sending secret message. Control mode and message mode did not break Bell states so the process of sharing Bell states was one-time, then communication partners could execute control mode and message mode again and again to detect eavesdropping and send secret messages.

Key words: quantum optics, quantum secure direct communication, quantum encryption, eavesdropping detected

中图分类号:

O431.2

钱鹏李兴华. 基于信道加密的量子安全直接通信[J]. J4, 2015, 32(6): 686-690.

Qian Peng, Li Xinghua. Quantum Secure Direct Communication via Quantum Encryption[J]. J4, 2015, 32(6): 686-690.

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